Accton Technology ES4710BD - Manual (Page 430)

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E ES4710BD 10 Slots L2/L3/L4 Chassis Switch
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receive a HELLO packet from 11.11.4.2 via Broadcast interface 11.11.4.1
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18.4.2.2.34 debug ip ospf spf
Command: debug ip ospf spf
no debug ip ospf spf
Function: Enables the OSPF debug function for shortest path algorithm; the “no debug ip ospf spf”
command disables this debug function.
Default: Debugging is disabled by default.
Command mode: Admin Mode
18.4.3 Typical OSPF Scenario
Scenario 1: OSPF autonomous system.
This scenario takes an OSPF autonomous system consists of five ES4710BD layer 3 switches
for example, where layer 3 switch Switch1 and Switch5 make up OSPF area 0, layer 3 switch
Switch2 and Switch3 form OSPF area 1 (assume vlan1 interface of layer 3 switch Switch1 belongs
to area 0), layer 3 switch Switch4 forms OSPF area2 (assume vlan2 interface of layer 3 Switch5
belongs to area 0). Swtich1 and Switch5 are backbone layer 3 switches, Swtich2 and Switch4 are
area edge layer 3 switches, and Switch3 is the in-area layer 3 switch.
SWIT
Fig 18-3 Network topology of OSPF autonomous system.
The configuration for layer 3 switch Switch1 and Switch5 is shown below:
Layer 3 switch Switch1:
!Configuration of the IP address for interface vlan1
Switch1#config
Switch1(Config)# interface vlan 1
Switch1(Config-if-vlan1)# ip address 10.1.1.1 255.255.255.0
Switch1(Config-if-vlan1)#no shut-down
Switch1(Config-if-vlan1)#exit